Search a number
-
+
30855906498 = 238243623881
BaseRepresentation
bin11100101111001001…
…111100010011000010
32221122101211110100210
4130233021330103002
51001143103001443
622101445054550
72141431610034
oct345711742302
987571743323
1030855906498
11120a439a27a
125b916b7456
132ba97c0951
1416c9da7c54
15c08d45c33
hex72f27c4c2

30855906498 has 16 divisors (see below), whose sum is σ = 61719398496. Its totient is φ = 10284037920.

The previous prime is 30855906481. The next prime is 30855906509. The reversal of 30855906498 is 89460955803.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262483 + ... + 361398.

It is an arithmetic number, because the mean of its divisors is an integer number (3857462406).

Almost surely, 230855906498 is an apocalyptic number.

30855906498 is an abundant number, since it is smaller than the sum of its proper divisors (30863491998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30855906498 is a wasteful number, since it uses less digits than its factorization.

30855906498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632129.

The product of its (nonzero) digits is 9331200, while the sum is 57.

The spelling of 30855906498 in words is "thirty billion, eight hundred fifty-five million, nine hundred six thousand, four hundred ninety-eight".

Divisors: 1 2 3 6 8243 16486 24729 49458 623881 1247762 1871643 3743286 5142651083 10285302166 15427953249 30855906498